1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a7a07b6d1547475508d85046a95aea1154366bdc71ec1d20a6ae6203787b37. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4556b8c-6389-4a86-906b-6f6c434e2eca.json and https://artists.proofprofile.net/proofs/artist/d4556b8c-6389-4a86-906b-6f6c434e2eca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c95efeadcd894bcd420f873a0d9a5f733614cb52dcfcbdd6359110389e028b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ1790782.
Relaxing Ocean Waves (White Noise) [1 Hour]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b09ddb9e2f5548811cff9545c6288800e759e5fff1e174cdfcd24e9cd446db7. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41756022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6fd3e33045565b02811c725bb635b23dcad9516c27d7b70e3fe748530b722cd. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41756026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859fb265a1b73021ae8b80cee06808c808eb02ffbd4e09d89e7604e4d57c0b3a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ1835010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b14a0303e4ae15967f5df512563d122f6a489fbed29a3e8ad71927051a84851. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ1835015.
Womb Sounds Calm White Noise for Deep Sleep
Countryside Calm One Hour of White Noise Wind
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08351f6d21768343889330e85f3169c4eac2e91652b746d5c344319064bccab2. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4Q1856217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36d5bc6c8ecf7dd5c0e65ed6aa9c6265a4dfaf5bc3449a622b7f3827577d166. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4Q1856219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc90adca443349ec77afcdb78614336f8d6d07d8cf75e088cd27fa2f652ee92. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4Q1856226.
Womb Sound with Mothers Heart Beat & Pulse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c64383cbf6d4ca503536df87925eae85715c3fda1b42931ac34a9e08fe41fe. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41970697.
Sleep All Night with Help from Soothing Sounds
Brainwaves: Help Sleep, Help Calm, Help Focus
Tumble Dryer: Hypnotic Sounds for Sleep (One Hour)
Jet Plane Cabin Hypnotic Sleep Noise (One Hour)
Relaxing Rain & Rolling Thunder (One Hour)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652c52307adacdff4108a0f616e9d795a01b43d96b593517a4b93fa3d0e2bdee. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81993198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52075a56dc768d6dee85ff5a2ec8fac74241ff5fcb5391dd753dddf489814fb5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2082307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560d47cc099d639f871c269e0d7736a05a161bc91a11d9ff68ecb8e75389d1aa. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2082313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da67f94a2d2186665aa37fa0b638a7ea4921d4f43be3b8d850981dcd2943577. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX9P2014951.
Storm, Rolling Thunder, Gentle Wind, Clearing Rain and Singing Birds